Swipe om te navigeren naar een ander artikel
To evaluate the psychometric properties of the Sinhala version of the breast cancer-specific health-related quality of life (HRQL) module of the European Organization for Research and Treatment of Cancer (QLQ-BR23).
Psychometric testing assessed the hypothesized scale structure, internal consistency, construct validity and acceptability of the Sinhala version of the QLQ-BR23 in a consecutive series of 356 newly diagnosed breast cancer patients recruited from tertiary care oncology treatment centres in Sri Lanka.
Compliance and self-completion rates were high (98% and 88%, respectively), and missing data low (0.06%). Multitrait scaling confirmed the scale structure of the QLQ-BR23 with excellent item convergence (95%), item discrimination (99%), and scaling success (99%) rates. The Cronbach’s alpha coefficients of the scales for internal consistency reliability ranged from 0.68 to 0.93. Construct validity was confirmed with satisfactory results for interscale correlations and known-groups comparisons. QLQ-BR23 item-scale correlations met or exceeded the convergent validity criterion of 0.40 for all but one item. QLQ-BR23 interscale correlations met this criterion for three comparisons and for five comparisons with conceptually related QLQ-C30 scales. Correlations between QLQ-BR23 scales and QLQ-C30 functional scales were lower as expected. As expected, most dimensions of the QLQ-BR23 were able to discriminate clearly between pretreatment and current treatment patients.
Overall psychometric results for the Sinhala version of the QLQ-BR23 confirmed it as a reliable and valid questionnaire for assessing breast cancer-specific HRQL in Sri Lanka.
Log in om toegang te krijgen
Met onderstaand(e) abonnement(en) heeft u direct toegang:
Sloan, F. A., & Gelband, H. (Eds.) (2006). Cancer control opportunities in low- and middle-income countries. Washington DC: The National Academies.
National Cancer Control Programme. (2006). Cancer incidence data: Sri Lanka 2000, cancer registry. Maharagama: National Cancer Control Programme.
Sprangers, M. A. G., Groenvold, M., Arraras, J. I., et al. (1996). The European Organisation for Research and Treatment of Cancer Breast Cancer-Specific Quality-of-Life Questionnaire Module: First results from a three-country field study. Journal of Clinical Oncology, 14(10), 2756–2768. PubMed
Jayasekara, H. D. M. H., & Rajapaksa, L. C. (2006). An assessment of quality-of-life and satisfaction with care in patients diagnosed with some common cancers. Thesis, Postgraduate Institute of Medicine, University of Colombo.
Cull, A., Sprangers, M., Bjordal, K., Aaronson, N., West, K., & Bottomley, A. on behalf of the European Organisation for Research and Treatment of Cancer Quality of Life Study Group. (2002). EORTC quality of life group translation procedure (2nd ed.). Brussels: EORTC.
World Health Organization (WHO). (1992). International statistical classification of diseases and related health problems (10th revision). Geneva: WHO.
Tabachnik, B. J., & Fidel, L. S. (1993). Using multivariate statistics. London: Harper & Row.
Aaronson, N. K., Ahmedzai, S., Bergman, B., et al. (1993). The European Organisation for Research and Treatment of Cancer QLQ-C30: A Quality-of-Life Instrument for use in International Clinical Trials in Oncology. Journal of the National Cancer Institute, 85, 365–376. doi: 10.1093/jnci/85.5.365. PubMedCrossRef
Fayers, P. M., Aaronson, N. K., Bjordal, K., Groenvold, M., Curran, D., & Bottomley, A., on behalf of the European Organisation for Research and Treatment of Cancer Quality of Life Study Group. (2001). The EORTC QLQ-C30 scoring manual (3rd ed.). Brussels: EORTC.
Nie, N. H., Hull, C. H., Jenkins, J. G., Steinbrenner, K., & Bent, D. H. (1975). Statistical package for social sciences (SPSS). (2nd ed.). New York: McGraw-Hill.
Hays, R. D., Hayashi, T., Carson, S., & Ware, J. E. (1988). User’s guide for the multitrait analysis program (MAP). Santa Monica, Carlifornia: Rand Corporation.
Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory. USA: McGraw-Hill.
Kerlinger, F. N. (1978). Foundations of behavioural research. New York: McGraw-Hill.
Young, T., De Haes, H., Curran, D., Fayers, P., Brandberg, Y., Vanvooden, V. & Bottomley, A., on behalf of the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group and Quality of Life Unit. (2002). Guidelines for assessing quality of life in EORTC clinical trials (version 2). Brussels: EORTC.
- Measuring breast cancer-specific health-related quality of life in South Asia: psychometric properties of the Sinhala version of the EORTC QLQ-BR23
Lalini C. Rajapaksa
- Springer Netherlands